About Jesse Moser Expertise I specialize in the Plymouth Duster from 1970 to 1973, allthough 1974 through 1976 Dusters are nearly identical. 340s, Twisters, Feather Dusters (the cars!), whatever "A" body Duster you have, I can probably give you some info.
Experience I own a 1973 Duster with the Twister options package. I've been searching for information on this specific car since 1995 and have acquired much general and specific knowledge in the process.
Organizations belong to: Mopar Mailing List
Question Remember me...I was the person that asked you about the swaping my 225 slant six for a 360. Well I decided to keep my 225 but make it a super six. I was wondering if you could tell me specific items and where i could get them. Like specific brands, ect.
1. 2-barrel carb
2. aluminum intake
3. bigger exhaust
and all of these will fit my car?
thanks for your help!
Answer Hello again Jason, it's good to see that you've thought through your descision. I always hate to see people end up with something they're not happy with after lots of hard work.
A true Super Six used the 2 barrel carb and intake, and standard exhaust. If you could find one of these in a salvage yard, it would be the best way to go. Even an online advertisement or auction would probably be very reasonably priced. Most likely they would be on 77-79 Aspens or Volares. Don't ignore the wagons, either. Another option, If you would prefer new parts, or less work but also more money, would be to but a new intake. Mopar Performance offers their 2 barrel M-1, which is the only one that I know of. You can order one from your local dealer, but I'm not sure if it would be a good intake for the street. Some V8 M1s do not have heater ports or a heat riser, so I'm not sure about the 6 cyls. Be sure to ask. MP reccomends the Carter BBD 81375 carb with richer jets on the Super 6 intake for racing, so the came carb without changing the jets should work well on the street with the M1.
On the exhaust side, a 1976 Feather Duster exhaust manifold would be prime. Unfortunately, there are only a few thousand of these around, so finding and affording one would probably be next to impossible. Headers are also available from Mopar, and probably every major header company if you contact them directly. Some headers may even only connect 3 cylinders in each header, meaning you could run true dual exhaust. The least expensive option would simply be to use a larger pipe and better flowing muffler from your stock manifold.
Some small things to consider would be a viscous or otherwise clutched fan, an open element filter, and adding electronic ignition if you don't have it already. A small engine needs every bit of help it can get, even a small 8. So don't forget about the details as much as your wallet can afford. Make everything work together as a whole car, not just parts, and you should be very satisfied with your hot rod slant 6.
